package 文库检索;

public class  Pair <F,S> {
    public F first;
    public S second;

    public Pair() {
    }

    public Pair(F first, S second) {
        this.first = first;
        this.second = second;
    }

    public static <F,S> Pair make_pair(F first, S second){
        return new Pair(first,second);
    }
}
